Tag Archives: Max Tegmark

Complexity and Randomness

Last week, when I posted about the Mathematical Universe Hypothesis (MUH), I noted that it has the same problem as the Block Universe Hypothesis (BUH): It needs to account for its apparent out-of-the-box complexity. In his book, Tegmark raises the issue, but doesn’t put it to bed.

He invokes the notion of Kolmogorov complexity, which, in a very general sense, is like comparing things based on the size of their ZIP file. It’s essentially a measure of the size of information content. Unfortunately, his examples raised my eyebrows a little.

Today I thought I’d explore why. (Turns out I’m glad I did.)

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Tegmark: MUH? Meh!

I finally finished Our Mathematical Universe (2014) by Max Tegmark. It took me a while — only two days left on the 21-day library loan. I often had to put it down to clear my mind and give my neck a rest. (The book invoked a lot of head-shaking. It gave me a very bad case of the Yeah, buts.)

I debated whether to post this for Sci-Fi Saturday or for more metaphysical Sabbath Sunday. I tend to think either would be appropriate to the subject matter. Given how many science fiction references Tegmark makes in the book, I’m going with Saturday.

The hard part is going to be keeping this post a reasonable length.

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Our Intuitions

At the beginning of the week, I mentioned I’m reading Our Mathematical Universe (2014), by Max Tegmark. His stance on inflation, and especially on eternal inflation, got me really thinking about it. Then all that thinking turned into a post.

It happened again last night. That strong sense of, “Yeah, but…” With this book, that’s happening a lot. I find something slightly, but fundamentally, off about Tegmark’s arguments. There seems an over-willingness to accept wild conclusions. This may all say much more about me than about Tegmark, which in this case is perfect irony.

Because what set me off this time was his chapter about human intuition.

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How Many Big Bangs?

Bang!!

I’m reading Our Mathematical Universe (2014), by Max Tegmark, and I’ll post about the book when I finish. However he got my attention early with the topic of eternal inflation. That got me thinking about how there are some key unanswered questions regarding the Big Bang and inflation of the non-eternal sort.

Inflation certainly does need some explaining. It may be related to dark energy, as both seem to do the same sort of thing (push space apart). The putative physics of inflation is bad enough; eternal inflation is (in my view) fairy tale physics.

For one thing, eternal? Seriously? Infinite something from nothing?

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Story Completeness

Last week I did a little jazz riff on the idea of “story space” — where all the stories live — and how the interesting stories we want to hear are all improbable to the point of having zero chance of actually happening (unless, gasp, statistics can lie).

I thought I’d return to that basic story space idea and, in the process, finally deal with a note that’s been on my idea board for years. My problem has been that, while the idea the note expresses seemed interesting enough, I’ve never quite seen how to turn it into a post. I’m not even sure the idea makes any real sense, let alone is worth trying to write about.

However that’s never stopped me before, and it’s (almost) Chillaxmus, so cue the music, it’s riff time again…

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